With secondary active transport, the movement of
a. H+ out of a cell by antiport is downhill
b. amino acids into the cell by symport is uphill
c. glucose into a cell by cotransport is downhill
d. H+ is in the same direction as the movement of Na+
e. glucose is in the opposite direction as the movement of Na+
B
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Voluntary movements are carried out by the contraction of
A) nonstriated muscle. B) all types of muscle. C) smooth muscle. D) skeletal muscle. E) cardiac muscle.
A good example of a positive feedback mechanism would be ________.
A) body temperature regulation B) regulating glucose levels in the blood C) enhancement of labor contractions D) blood calcium level regulation
What is/are the function(s) of the organ system labeled #3?
A) help control body temperature
B) provides support; produces heat
C) provides support; protects tissues; stores minerals
D) directs immediate responses to stimuli
E) defends against infection and disease
Which of the following will increase the rate of a chemical reaction?
A. An increase in reactant concentration B. Enzyme inhibition C. A decreased temperature D. An increase in product concentration